Best Practices in Geospatial Metadata

Transcription

1 Utah State University Library Faculty & Staff Presentations Libraries Best Practices in Geospatial Metadata Liz Woolcott Utah State University A. Neatrour S. McIntyre R. Wittmann Follow this and additional works at: Part of the Library and Information Science Commons Recommended Citation Woolcott, Liz; Neatrour, A.; McIntyre, S.; and Wittmann, R., "Best Practices in Geospatial Metadata" (2014). Library Faculty & Staff Presentations. Paper This Presentation is brought to you for free and open access by the Libraries at It has been accepted for inclusion in Library Faculty & Staff Presentations by an authorized administrator of For more information, please contact

2 Best Practices in Geospatial Metadata

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6 The Goal

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22 MWDL Geospatial Discovery Task Force

23 Task Force Charge 1. Identify existing geospatial metadata practices 2. Develop guidelines for standardizing 3. Creating map-based search interfaces 4. Identify and share tools

24 Phase One Three subgroups: 1. Review previous report 2. Identify low hanging fruit 3. Identify map-based interfaces

25 Task Force Timeline: Phase One

26 Phase One: Webinar Report Geospatial Discovery Task Force report (webinar): Community notes from webinar:

27 Phase Two Three more subgroups: 1. Controlled vocabularies 2. Coordinate data and GIS perspectives 3. Map-based Interfaces

28 Task Force Timeline : Phase Two

29 Current Recommendation: 1 All standards and practices adopted by the metadata review board should be compliant with the ISO 19115:2003* Geographic Information--Metadata standard *Task Force will review the latest released standard ISO :2014 in the coming months

30 Current Recommendation: 2 Since MWDL contributors may need to use varied controlled vocabularies, we recommend that a geospatial metadata format and selected controlled vocabulary be highly recommended but not enforced.

31 Current Recommendation: 3 There is a clear preference for expressing coordinates in latitude-longitude as decimal degrees over the degrees-minutes-seconds format. Latitude: Ex. Mount McKinley: Longitude: Latitude: N 63 32' " Longitude: W ' "

32 Current Recommendation: 4 It is recommended that partners keep all the elements of a single term within a single iteration of the field. For example, don t split latitude and longitude. Repeat spatial field for each new entity.

33 Current Recommendations: 4 ex. For example: Mt. McKinley Lat/Long expressed: <dcterms:spatial> , </dcterms:spatial> Controlled Vocab expressed: <dcterms:spatial>mount McKinley, Denali National Park and Preserve, Alaska</dcterms:spatial> URI expressed: <dcterms:spatial> All together: <dcterms:spatial> , ; Mount McKinley, Denali National Park and Preserve, Alaska;

34 Current Recommendation: 5 Partners should map geospatial metadata field (s) to the Dublin Core spatial refinement of coverage (dcterms:spatial), which can be done at the collection level. The OAI provider for the repository hosting the collection should support provision of qualified Dublin Core if possible.

35 Current Recommendation: 6 The spatial coverage refinement (dcterms: spatial) is highly recommended for all new collections harvested by MWDL.

36 Current Recommendation: 7 Where converting legacy data may be too difficult, partners can add an additional separate field mapped to the Dublin Core term spatial (dcterms:spatial) with basic, minimal geospatial metadata (at least at country and state level), in accordance with upcoming recommendations for controlled vocabulary.

37 Next Steps: 1. Select a recommended controlled vocabulary 2. Investigate best ways to represent geospatial information a. Tools b. Software c. Techniques/Best Practices 3. Look further into GeoJSON vs. KML

38 Next Steps: 4. Review the formatting and syntax of Points and Boxes, particularly in regards to the DCMI Box/Encoding Schemes: a. DCMI Box Encoding Scheme at Example: name=western Australia; northlimit=-13.5; southlimit=-35.5; westlimit=112.5; eastlimit=129 b. DCMI Point Encoding Scheme at Example: name=perth, W.A.; east= ; north= Example: east= ; north= ; elevation=2228; name=mt. Kosciusko

39 Next Steps: 5. Develop regional gazetteer a. Investigate ways to integrate this into the recommended controlled vocabulary 6. Develop actionable plans to deal with legacy data a. List of common find and replace scenarios b. Analyze current top five strategies used to assign geospatial metadata, estimate cost and workflow needed to convert legacy data

40 Use Cases I just want my metadata harvested and showing up on DPLA s map. I want my items to be represented at least at the State level in DPLA s map. I don t have any geographic metadata and I want to get started assigning coordinates to things in my collection. I want to create a walking tour of a buildings collection (historic homes of 1925) and need different points expressing street level locations (points + photo). I m not interested in coordinate data but I m interested in putting in city, state, town information and I want to get started with linked data. I want to display county outlines instead of just a point in the middle of the county.